US20140251027A1 - Threaded member capable of detecting tightening force - Google Patents
Threaded member capable of detecting tightening force Download PDFInfo
- Publication number
- US20140251027A1 US20140251027A1 US14/160,910 US201414160910A US2014251027A1 US 20140251027 A1 US20140251027 A1 US 20140251027A1 US 201414160910 A US201414160910 A US 201414160910A US 2014251027 A1 US2014251027 A1 US 2014251027A1
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- US
- United States
- Prior art keywords
- threaded member
- section
- head section
- bottom face
- strain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 230000035945 sensitivity Effects 0.000 description 5
- 238000011109 contamination Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
- F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load
Definitions
- the present invention relates generally to a threaded member capable of detecting tightening force, and more particularly to a threaded member, which has higher strain sensitivity for more precisely detecting the tightening extent of the threaded member.
- a threaded member is used to tighten a work piece.
- a threaded member is often used to tighten or connect two or more articles with each other.
- the threaded member is only tightened without noting the tightening torque applied to the threaded member.
- Taiwan Patent No. I310810 discloses an engineering threaded member capable of showing torque value as shown in FIGS. 1 and 2 .
- the threaded member includes a threaded member A10 and a torque measuring unit A20.
- the threaded member A10 has a head section A11 and a threaded rod section A12.
- the torque measuring unit A20 is disposed on the head section A11, having a processing/display unit A21 and a sensor A22 for detecting the deformation of the head section A11.
- the sensor A22 detects the deformation of the head section and transmits a signal to the processing/display unit A21 to display the tightening force applied to the threaded member A10.
- the above patent enables a user to read the tightening extent of the threaded member.
- the sensitivity of the threaded member is insufficient. This is because when the threaded member A10 is tightened with a locked article as shown in FIG. 2 , the head section A11 is in contact with the locked article.
- the head section A11 of the threaded member is a solid body so that the deformation of the head section is small.
- the sensor A22 can detect the deformation and find the tightening torque only when the head section is deformed to a certain extent. Therefore, the conventional threaded member A10 can hardly sensitively and precisely detect the deformation extent so that it is hard for a user to read a precise tightening torque.
- a sink section is formed between the head section and threaded rod section of the threaded member.
- the threaded member capable of detecting tightening force of the present invention includes a head section, a threaded rod section and a strain sensor.
- the head section has a bottom face and a skirt section downward protruding from the bottom face.
- a receiving space is formed between the bottom face of the head section and the skirt section.
- the threaded rod section is disposed under the bottom face of the head section.
- a sink section is formed on the bottom face of the head section between the threaded rod section and the head section.
- the strain sensor (such as a strain gauge or a tension gauge) is disposed on the bottom face of the head section and positioned in the receiving space.
- the strain sensor can precisely detect the tightening extent of the head section to provide a true tightening torque value for a user to ensure safety.
- FIG. 1 is a perspective view of a conventional threaded member
- FIG. 2 is a sectional view of the threaded member according to FIG. 1 , showing that the threaded member is tightened with a locked article;
- FIG. 3 is a front partially sectional view of a first embodiment of the present invention.
- FIG. 4 is a bottom view according to FIG. 3 ;
- FIG. 5 is a sectional view of the first embodiment of the present invention, showing that the threaded member is tightened with a locked article;
- FIG. 6 is a bottom view of a second embodiment of the present invention.
- FIG. 7 is a bottom view of a third embodiment of the present invention.
- FIG. 8 is a front partially sectional view of a fourth embodiment of the present invention.
- FIG. 9 is a bottom view of a fifth embodiment of the present invention.
- the threaded member 100 of the present invention includes a head section 1 , a threaded rod section 2 and a strain sensor 4 .
- the head section 1 has a bottom face 11 and a skirt section 12 downward protruding from a periphery of the bottom face 11 .
- the skirt section 12 is formed along the periphery of the bottom face 11 .
- a receiving space 13 is formed under the head section 1 between the skirt section 12 and the bottom face 11 .
- the threaded rod section 2 is disposed at a center of the bottom face 11 of the head section 1 .
- a thread is formed on outer circumference of the threaded rod section 2 .
- a sink section 3 is formed on the bottom face 11 of the head section 1 in adjacency to the threaded rod section 2 .
- the bottom face 11 is inward recessed from the receiving space 13 to form the sink section 3 .
- the sink section 3 is, but not limited to, an annular groove.
- the bottom face 11 of the head section 1 is recessed to form a conic annular groove as shown in FIG. 4 .
- the sink section 3 has a depth h 10 ⁇ 35% of a thickness T of the head section 1 . Accordingly, while having a sufficient structural strength, the threaded member 100 is easy to strain. Please refer to FIG. 6 .
- the sink section 3 can be composed of multiple recesses 31 formed on the bottom face 11 of the head section 1 .
- the recesses 31 can have a geometrical form such as an arched form or a strip form.
- the cross section of the recesses 31 can be semicircular, triangular, square or rectangular.
- the recesses 31 are annularly arranged on the bottom face 11 of the head section around the threaded rod section 2 to enhance the straining effect of the head section 1 .
- two to four recesses 31 are annularly arranged on the bottom face 11 at equal intervals in immediate adjacency to the threaded rod section 2 . Accordingly, when a tightening force is applied to the head section 1 to strain the head section 1 , the sink section 3 can increase the strain capacity of the head section 1 to precisely indicate the strain capacity of the head section 1 . Therefore, the strain sensitivity is enhanced.
- the strain sensor 4 can be a strain gauge, a tension gauge or a sensation element equipped with a chip.
- the strain sensor 4 serves to detect the strain capacity of the sink section 3 so as to obtain a precise tightening torque value.
- the strain sensor 4 is fixedly disposed on the bottom face 11 of the head section 1 and received in the receiving space 13 .
- the bottom face 11 serves as a plane for arranging the strain sensor 4 thereon.
- the strain sensor 4 has wireless transmission function, whereby the detected strain torque value is transmitted to an external device (not shown).
- the strain sensor 4 can be a strain sensor with radio frequency identification (RFID) function, an infrared strain sensor, a Bluetooth strain sensor or a near field communication (NFC) strain sensor for providing short-distance high-frequency wireless communication.
- RFID radio frequency identification
- NFC near field communication
- the strain sensor 4 can be connected with a wire to transmit signal or information in a wired manner.
- the head section is formed with a perforation for conducting the wire therethrough.
- the height of the skirt section 12 of the head section 1 is larger than the thickness of the strain sensor 4 .
- the locked article 200 is fixed in a specific position.
- the threaded member 100 is wrenched and tightened, the skirt section 12 of the head section 1 contacts the locked article 200 to strain the head section 1 .
- the head section 1 Due to the sink section 3 , the head section 1 is easier to deform than the conventional threaded member so that the strain capacity of the head section 1 is enlarged.
- the strain sensor 4 is disposed on the bottom face 11 near the sink section 3 , whereby the strain sensor 4 can immediately and sensitively detect the change of the force applied to the head section 1 and the deformation of the head section 1 .
- the strain value of the threaded member can be sensitively and precisely detected and the detected data can be wirelessly transmitted to an external device (not shown) for a user to real-time read the tightening force (tightening torque) of the threaded member 100 . Moreover, after tightened, the user can monitor the state of the threaded member according to the read data so as to ensure safety.
- the threaded member 100 also includes a head section 1 , a threaded rod section 2 and a sink section 3 formed between the head section 1 and the threaded rod section 2 .
- the head section 1 also has a bottom face 11 , a skirt section 12 and a receiving space 13 .
- the third embodiment is different from the first embodiment in that the third embodiment includes multiple strain sensors 4 , for example, four strain sensors.
- the strain sensors 4 are annularly arranged on the bottom face 11 of the head section 1 at intervals.
- the respective strain sensors 4 are positioned in different directions for detecting the deformation extents of the head section 1 in different directions. In this case, the strain sensors 4 can immediately provide the tightened state of the threaded member in different angular positions so as to achieve more precise detection result.
- FIG. 8 is a front view of a fourth embodiment of the threaded member of the present invention.
- the same components and structures of the fourth embodiment as the first embodiment will not be repeatedly described hereinafter.
- the fourth embodiment is different from the first embodiment in that the fourth embodiment further includes a protection plate 5 received in the receiving space 13 between the skirt section 12 and the bottom face 11 .
- the protection plate 5 serves to provide dustproof, anti-contamination and dampproof effect so as to protect the strain sensor 4 . After the protection plate 5 is mounted into the receiving space 13 , the bottom face of the protection plate 5 will not protrude from the bottom face of the skirt section 12 .
- FIG. 9 is a bottom view of a fifth embodiment of the threaded member of the present invention.
- the same components and structures of the fifth embodiment as the first embodiment will not be repeatedly described hereinafter.
- the fifth embodiment is different from the first embodiment in that the fifth embodiment includes four strain sensors 4 arranged on the bottom face 11 of the head section 1 at intervals.
- the respective strain sensors 4 are positioned in different directions for detecting the deformation of the head section 1 in different directions.
- the strain sensors 4 can provide the data of the tightened extents of the threaded member in different angular positions so as to achieve more precise detection result.
- a protection plate 5 is disposed in the receiving space 13 to provide dustproof, anti-contamination and dampproof effect so as to protect the strain sensors 4 .
- the sink section is formed between the head section and the threaded rod section and at least one strain sensor is disposed on the bottom face of the head section to sensitively and precisely detect the tightening torque of the threaded member.
- the strain sensor further transmits the data of tightening torque to a user for the user to monitor the tightened state of the threaded member so as to ensure safety.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
- 1. Field of the Invention
- The present invention relates generally to a threaded member capable of detecting tightening force, and more particularly to a threaded member, which has higher strain sensitivity for more precisely detecting the tightening extent of the threaded member.
- 2. Description of the Related Art
- A threaded member is used to tighten a work piece. In engineering, a threaded member is often used to tighten or connect two or more articles with each other. In simple practice, the threaded member is only tightened without noting the tightening torque applied to the threaded member.
- However, when the threaded member is applied to a current large-scale building, sophisticated building, sophisticated equipment or highly stressed site, in the case that the threaded member is over-tightened or under-tightened, the structural strength of the building and the operation effect of the mechanical equipment will be affected. This will even threaten the security of lives and properties of users. Therefore, when tightened, the tightening extent of the threaded member must be monitored, measured and recorded so as to ensure safety.
- In order to achieve the above object, the applicant's Taiwan Patent No. I310810 discloses an engineering threaded member capable of showing torque value as shown in
FIGS. 1 and 2 . The threaded member includes a threaded member A10 and a torque measuring unit A20. The threaded member A10 has a head section A11 and a threaded rod section A12. The torque measuring unit A20 is disposed on the head section A11, having a processing/display unit A21 and a sensor A22 for detecting the deformation of the head section A11. When the threaded member A10 is tightened, the sensor A22 detects the deformation of the head section and transmits a signal to the processing/display unit A21 to display the tightening force applied to the threaded member A10. - The above patent enables a user to read the tightening extent of the threaded member. However, the sensitivity of the threaded member is insufficient. This is because when the threaded member A10 is tightened with a locked article as shown in
FIG. 2 , the head section A11 is in contact with the locked article. The head section A11 of the threaded member is a solid body so that the deformation of the head section is small. The sensor A22 can detect the deformation and find the tightening torque only when the head section is deformed to a certain extent. Therefore, the conventional threaded member A10 can hardly sensitively and precisely detect the deformation extent so that it is hard for a user to read a precise tightening torque. - It is therefore tried by the applicant to further provide a threaded member capable of detecting tightening force, which has higher strain sensitivity for more precisely detecting the tightening torque of the threaded member so as to ensure safety.
- It is therefore a primary object of the present invention to provide a threaded member capable of detecting tightening force. A sink section is formed between the head section and threaded rod section of the threaded member. When a tightening force is applied to the head section to strain the head section relative to the threaded rod section, due to the sink section, the head section is easier to deform than the conventional threaded member so that the strain capacity of the head section can be sensitively detected. Accordingly, a strain sensor (such as a strain gauge or a tension gauge) can immediately and precisely detect the strain extent of the threaded member to provide a true tightening torque value for a user to ensure safety.
- To achieve the above and other objects, the threaded member capable of detecting tightening force of the present invention includes a head section, a threaded rod section and a strain sensor. The head section has a bottom face and a skirt section downward protruding from the bottom face. A receiving space is formed between the bottom face of the head section and the skirt section. The threaded rod section is disposed under the bottom face of the head section. A sink section is formed on the bottom face of the head section between the threaded rod section and the head section. The strain sensor (such as a strain gauge or a tension gauge) is disposed on the bottom face of the head section and positioned in the receiving space.
- Accordingly, due to the sink section, when the head section of the threaded member is deformed under the tightening force, the strain capacity of the threaded member is enlarged to enhance the strain sensitivity thereof. In this case, the strain sensor can precisely detect the tightening extent of the head section to provide a true tightening torque value for a user to ensure safety.
- The present invention can be best understood through the following description and accompanying drawings, wherein:
-
FIG. 1 is a perspective view of a conventional threaded member; -
FIG. 2 is a sectional view of the threaded member according toFIG. 1 , showing that the threaded member is tightened with a locked article; -
FIG. 3 is a front partially sectional view of a first embodiment of the present invention; -
FIG. 4 is a bottom view according toFIG. 3 ; -
FIG. 5 is a sectional view of the first embodiment of the present invention, showing that the threaded member is tightened with a locked article; -
FIG. 6 is a bottom view of a second embodiment of the present invention; -
FIG. 7 is a bottom view of a third embodiment of the present invention; -
FIG. 8 is a front partially sectional view of a fourth embodiment of the present invention; and -
FIG. 9 is a bottom view of a fifth embodiment of the present invention. - Please refer to
FIGS. 3 and 4 . According to a first embodiment, the threadedmember 100 of the present invention includes ahead section 1, a threadedrod section 2 and astrain sensor 4. Thehead section 1 has abottom face 11 and askirt section 12 downward protruding from a periphery of thebottom face 11. Theskirt section 12 is formed along the periphery of thebottom face 11. Areceiving space 13 is formed under thehead section 1 between theskirt section 12 and thebottom face 11. The threadedrod section 2 is disposed at a center of thebottom face 11 of thehead section 1. A thread is formed on outer circumference of the threadedrod section 2. - A
sink section 3 is formed on thebottom face 11 of thehead section 1 in adjacency to the threadedrod section 2. Thebottom face 11 is inward recessed from thereceiving space 13 to form thesink section 3. In this embodiment, thesink section 3 is, but not limited to, an annular groove. For example, thebottom face 11 of thehead section 1 is recessed to form a conic annular groove as shown inFIG. 4 . Preferably, thesink section 3 has a depth h 10˜35% of a thickness T of thehead section 1. Accordingly, while having a sufficient structural strength, the threadedmember 100 is easy to strain. Please refer toFIG. 6 . Alternatively, thesink section 3 can be composed ofmultiple recesses 31 formed on thebottom face 11 of thehead section 1. Therecesses 31 can have a geometrical form such as an arched form or a strip form. The cross section of therecesses 31 can be semicircular, triangular, square or rectangular. Preferably, therecesses 31 are annularly arranged on thebottom face 11 of the head section around the threadedrod section 2 to enhance the straining effect of thehead section 1. For example, two to fourrecesses 31 are annularly arranged on thebottom face 11 at equal intervals in immediate adjacency to the threadedrod section 2. Accordingly, when a tightening force is applied to thehead section 1 to strain thehead section 1, thesink section 3 can increase the strain capacity of thehead section 1 to precisely indicate the strain capacity of thehead section 1. Therefore, the strain sensitivity is enhanced. - The
strain sensor 4 can be a strain gauge, a tension gauge or a sensation element equipped with a chip. Thestrain sensor 4 serves to detect the strain capacity of thesink section 3 so as to obtain a precise tightening torque value. Thestrain sensor 4 is fixedly disposed on thebottom face 11 of thehead section 1 and received in the receivingspace 13. Thebottom face 11 serves as a plane for arranging thestrain sensor 4 thereon. Thestrain sensor 4 has wireless transmission function, whereby the detected strain torque value is transmitted to an external device (not shown). Thestrain sensor 4 can be a strain sensor with radio frequency identification (RFID) function, an infrared strain sensor, a Bluetooth strain sensor or a near field communication (NFC) strain sensor for providing short-distance high-frequency wireless communication. Alternatively, thestrain sensor 4 can be connected with a wire to transmit signal or information in a wired manner. The head section is formed with a perforation for conducting the wire therethrough. - In addition, the height of the
skirt section 12 of thehead section 1 is larger than the thickness of thestrain sensor 4. When the threadedmember 100 is tightened with a locked article 200 (as shown inFIG. 5 ), thestrain sensor 4 will not contact the lockedarticle 200. Therefore, thestrain sensor 4 is prevented from being damaged. - As shown in
FIG. 5 , in use of the present invention, the lockedarticle 200 is fixed in a specific position. When the threadedmember 100 is wrenched and tightened, theskirt section 12 of thehead section 1 contacts the lockedarticle 200 to strain thehead section 1. Due to thesink section 3, thehead section 1 is easier to deform than the conventional threaded member so that the strain capacity of thehead section 1 is enlarged. Thestrain sensor 4 is disposed on thebottom face 11 near thesink section 3, whereby thestrain sensor 4 can immediately and sensitively detect the change of the force applied to thehead section 1 and the deformation of thehead section 1. Accordingly, the strain value of the threaded member can be sensitively and precisely detected and the detected data can be wirelessly transmitted to an external device (not shown) for a user to real-time read the tightening force (tightening torque) of the threadedmember 100. Moreover, after tightened, the user can monitor the state of the threaded member according to the read data so as to ensure safety. - Please now refer to
FIG. 7 , which is a bottom view of a third embodiment of the threaded member of the present invention. In this embodiment, the threadedmember 100 also includes ahead section 1, a threadedrod section 2 and asink section 3 formed between thehead section 1 and the threadedrod section 2. Thehead section 1 also has abottom face 11, askirt section 12 and a receivingspace 13. The third embodiment is different from the first embodiment in that the third embodiment includesmultiple strain sensors 4, for example, four strain sensors. Thestrain sensors 4 are annularly arranged on thebottom face 11 of thehead section 1 at intervals. Therespective strain sensors 4 are positioned in different directions for detecting the deformation extents of thehead section 1 in different directions. In this case, thestrain sensors 4 can immediately provide the tightened state of the threaded member in different angular positions so as to achieve more precise detection result. - Please now refer to
FIG. 8 , which is a front view of a fourth embodiment of the threaded member of the present invention. The same components and structures of the fourth embodiment as the first embodiment will not be repeatedly described hereinafter. The fourth embodiment is different from the first embodiment in that the fourth embodiment further includes aprotection plate 5 received in the receivingspace 13 between theskirt section 12 and thebottom face 11. Theprotection plate 5 serves to provide dustproof, anti-contamination and dampproof effect so as to protect thestrain sensor 4. After theprotection plate 5 is mounted into the receivingspace 13, the bottom face of theprotection plate 5 will not protrude from the bottom face of theskirt section 12. - Please now refer to
FIG. 9 , which is a bottom view of a fifth embodiment of the threaded member of the present invention. The same components and structures of the fifth embodiment as the first embodiment will not be repeatedly described hereinafter. The fifth embodiment is different from the first embodiment in that the fifth embodiment includes fourstrain sensors 4 arranged on thebottom face 11 of thehead section 1 at intervals. Therespective strain sensors 4 are positioned in different directions for detecting the deformation of thehead section 1 in different directions. In this case, thestrain sensors 4 can provide the data of the tightened extents of the threaded member in different angular positions so as to achieve more precise detection result. In addition, aprotection plate 5 is disposed in the receivingspace 13 to provide dustproof, anti-contamination and dampproof effect so as to protect thestrain sensors 4. - According to the above arrangement, the sink section is formed between the head section and the threaded rod section and at least one strain sensor is disposed on the bottom face of the head section to sensitively and precisely detect the tightening torque of the threaded member. The strain sensor further transmits the data of tightening torque to a user for the user to monitor the tightened state of the threaded member so as to ensure safety.
- The above embodiments are only used to illustrate the present invention, not intended to limit the scope thereof. Many modifications of the above embodiments can be made without departing from the spirit of the present invention.
Claims (18)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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TW102107903 | 2013-03-06 | ||
TW102107903A | 2013-03-06 | ||
TW102107903A TWI495800B (en) | 2013-03-06 | 2013-03-06 | A screw with a locking force |
Publications (2)
Publication Number | Publication Date |
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US20140251027A1 true US20140251027A1 (en) | 2014-09-11 |
US8991266B2 US8991266B2 (en) | 2015-03-31 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/160,910 Active US8991266B2 (en) | 2013-03-06 | 2014-01-22 | Threaded member capable of detecting tightening force |
Country Status (4)
Country | Link |
---|---|
US (1) | US8991266B2 (en) |
JP (1) | JP3189990U (en) |
DE (1) | DE202014100425U1 (en) |
TW (1) | TWI495800B (en) |
Cited By (6)
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US9483674B1 (en) * | 2014-03-07 | 2016-11-01 | United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | RFID torque sensing tag system for fasteners |
WO2017006068A1 (en) | 2015-07-09 | 2017-01-12 | Texys.Fr | Screw instrumented with extensometric strain gauges to measure the tensile and/or shear strain experienced by the screw |
US20180252255A1 (en) * | 2015-10-06 | 2018-09-06 | Ivan Giovanni FONDRIEST | Screw and method for reading a screw tightening force |
US10603564B2 (en) | 2018-01-03 | 2020-03-31 | Universal City Studios Llc | Interactive component for an amusement park |
US20210355977A1 (en) * | 2018-07-27 | 2021-11-18 | Robert Bosch Gmbh | Anchoring Device |
US20230220868A1 (en) * | 2019-08-04 | 2023-07-13 | Revotec Zt Gmbh | Screw nut |
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US9863457B2 (en) | 2015-11-11 | 2018-01-09 | Turnasure Llc | Direct tension indicating washer with offset protuberances and indentations |
US10738817B2 (en) | 2017-04-11 | 2020-08-11 | Turnasure Llc | Self-indicating direct tension indicator |
BE1025510B1 (en) * | 2018-02-06 | 2019-03-21 | Zensor Nv | Washer unit and voltage detection system for a confirmed coupling |
CN109483362B (en) * | 2019-01-11 | 2023-11-24 | 珠海东锦石英科技有限公司 | Beveling process for quartz wafer |
JP2020124753A (en) * | 2019-02-01 | 2020-08-20 | 株式会社ディスコ | Measuring tool |
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- 2014-01-28 JP JP2014000397U patent/JP3189990U/en not_active Expired - Lifetime
- 2014-01-31 DE DE202014100425.4U patent/DE202014100425U1/en not_active Expired - Lifetime
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US9483674B1 (en) * | 2014-03-07 | 2016-11-01 | United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | RFID torque sensing tag system for fasteners |
WO2017006068A1 (en) | 2015-07-09 | 2017-01-12 | Texys.Fr | Screw instrumented with extensometric strain gauges to measure the tensile and/or shear strain experienced by the screw |
FR3038671A1 (en) * | 2015-07-09 | 2017-01-13 | Etienne Demeocq | SCREW HAVING EXTENSOMETRY GAUGES FOR MEASURING THE TENSION STRESS AND / OR SHEAR SUBJECT (S) THROUGH THE SCREW |
CN107850103A (en) * | 2015-07-09 | 2018-03-27 | Texys.Fr公司 | A kind of screw with foil gauge, the stretching born for measuring bolt and/or shear stress |
JP2018527585A (en) * | 2015-07-09 | 2018-09-20 | デメオク、エチエンヌ | Screw with elastic strain gauge to measure experienced tensile and / or shear strain |
US10731693B2 (en) | 2015-07-09 | 2020-08-04 | Texys.Fr | Screw instrumented with extensometric strain gauges to measure the tensile and/or shear strain experienced by the screw |
US20180252255A1 (en) * | 2015-10-06 | 2018-09-06 | Ivan Giovanni FONDRIEST | Screw and method for reading a screw tightening force |
US10603564B2 (en) | 2018-01-03 | 2020-03-31 | Universal City Studios Llc | Interactive component for an amusement park |
US11130038B2 (en) | 2018-01-03 | 2021-09-28 | Universal City Studios Llc | Interactive component for an amusement park |
US20210355977A1 (en) * | 2018-07-27 | 2021-11-18 | Robert Bosch Gmbh | Anchoring Device |
US20230220868A1 (en) * | 2019-08-04 | 2023-07-13 | Revotec Zt Gmbh | Screw nut |
Also Published As
Publication number | Publication date |
---|---|
TW201435220A (en) | 2014-09-16 |
US8991266B2 (en) | 2015-03-31 |
TWI495800B (en) | 2015-08-11 |
DE202014100425U1 (en) | 2014-02-11 |
JP3189990U (en) | 2014-04-10 |
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